Finite Group Databasebeta

(C7⋊C9)⋊D19 #14558783

order2394
isoclinismisoclinic class of ΓL(1,𝔽8)⋊D19
automorphism?
homologyAbelianization (H1) = C2×C9 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect product(C7⋊C9)⋊D19

Splittings

derived, HallC7×C19 ⋊ C2×C9
HallC19×C7⋊C9 ⋊ C2
HallD133 ⋊ C9
HallC7⋊C9 ⋊ D19
SylowC19 ⋊ D7⋊C9
SylowC7 ⋊ C9×D19

Subgroups

subgroupG/H
center, Frattini, hypercenterC3ΓL(1,𝔽8)⋊D19
commutator, hypocenterC7×C19C2×C9
Fitting, socle, cosocleC3×C7×C19C2×C3
prime radicalC3×D133C3
LCSG ▷ C7×C19
UCSC1 ◁ C3

24 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 35
transitive degreeμt(G) = 1197

Polycyclic presentation:

2,3,7,19,3|b^3=e,c^a=c^6,d^a=d^18,c^b=c^2

Conjugacy classes & character table

156 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD19×D7⋊C9, C2×(C7⋊C9)⋊D19, C5×(C7⋊C9)⋊D19, …
maximal normal subgroup ofD19×D7⋊C9, C2×(C7⋊C9)⋊D19, C5×(C7⋊C9)⋊D19, …
maximal quotient of(C7⋊C9)⋊Dic19, C2×(C7⋊C9)⋊D19, C5×(C7⋊C9)⋊D19, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(2394, 9);